Sash-weight-casting apparatus



(No Model.)

'J; CARTER. SASH WEIGHT CASTING APPARATUS.

Patented Sept. 2'7, 1892.

. pp A. U 5 7///// 4 2 A M.

imlm

UNITED STATES PATENT OFFICE.

JOHN CARTER, OF NILES, OHIO.

SASH-WEIGHT-CAS TING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 483,208, datedSeptember 27, 1892. Application filed December 15, 1890. Renewed October31, 1891. Serial No. 410,413. (No model.)

To all whom it may concern:

Be it known that I, JOHN CARTER, a citizen of the United States,residing at Niles, in the county of Trumbull and State of Ohio, haveinvented certain new and useful Improvements in Machines and Molds forCasting Sash-IVeights; and I do hereby declare that the followingis afull, clear, and exact description of the invention, which will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to improvements in machines and molds for castingsash-weights; and the invention consists in the construction andcombination of parts, substantially as shown and described, andparticularlypointed out in the claims.

In the accompanying drawings, Figure 1 is aside elevation of a machineas it appears in operation with the molds attached and in can ryingposition. of a mold considerably enlarged over what is shown in Fig. 1,and showing also a section of the fiat carrying rim or band upon whichthe mold is temporarily hung as it is carried from one position toanother in the process of casting. Fig. 3 is an edge view of one of themolds and a cross-section of the carrying rim or band to which it isattached. Figs. 4 and 5 are inside views of the respective sections ofthe molds. Figs. 6 and 7 are edge views of the sections shown in Figs. 4and 5, and Figs. 8 and 9 are cross-sections of Figs. eand 5 on lines 0000 on said figures, respectively. Figs. 4:, 6, and 8 relate to onesection, and Figs. 5, 7, and 9 to the other section. Fig.10 is aperspective view of one of the sections of the mold in dotted lines, inwhich is shown a section of a gage-collar occupying the upper portion ofthe moldchamber and designed to utilize a given size of mold to castdifferent sizes of weights.

In the drawings I have illustrated one form of carrying frame or supportfor the molds by which the molds are conveyed from one place to theother in a circuit to be filled and discharged in rotation. For thispurpose I prefer a carrier of the variety shown with a central shaft 10,adapted to rotate in fixed bearings and provided with a carrying band orrim 11, suitably supported from said shaft. The band or rim 11 ispurposely constructed Fig. 2 is a perspective View with flat surfacesand made narrow in crosssection like the tire of a wheel, so as to adaptit to the convenient removal and replacement of the molds. This changeof molds occurs continually during the process of casting and representsone of the essential steps therein, for the reason that each mold mustbe taken cit to unload its contents and then be replaced to be carriedaround and filled. Furthermore, it is desirable to have a number ofextra molds on hand, so that some may be cooling while others are inuse, and at the same time have the carrier filled with molds, so thatthere will be no delay in the work while the cooling occurs and the fullcapacity of the machine be at all times obtained. This of course rendersa removable mold necessary, and my invention involves the idea of usingremovable molds in contradistinction of molds which are fixed to thecarrier-frame and are filled and emptied in permanently-attachedpositions. I

As here shown, each mold is formed in two sections 12 and 13, and one ofsaid sections has on its back a hook 1 1, adapted to engage thecarrier-rim l1 and support the mold on the carrier. These molds are notdesigned to be operated automatically, but are removed bodily from thecarrier when their contents are to be discharged and are bodily replacedwhen they are to be refilled. This work is done wholly by hand, and thesections are locked together by means of a tie-band 15 and a wedge orkey 16.

In order that the sections shall always exactly match when put togetherand that this matching or exact fitting shall occur naturally andwithout special effort or care when the sections are brought together, Iform longi tudinal rabbets or recesses 17 along the edge of onesection-in this instance section l2and corresponding projections 18along the edges of the opposite section which exactly fit the saidrecesses. At their lower ends the said recesses are cut at a slightinclination inward and downward, and a similar cut is given to theprojections 18, thereby forming something like a dovetail joint whichmakes a close fit of the sections by the mere force of gravitv whensection 13 is put in position. In all cases, however, one-half of themold-chamber is formed in each section, and the division- ICO line insaid chamber comes at the longitudinal center thereof.

In Fig. I illustrate a section of the mold with a section 19 of agage-collar placed therein and occupying the upper portion of themoldchamber. This gage-collar filler has a rim 20 about its upperportion, adapted to rest in the groove 21 in the mold-sections, and afunnelshaped opening 22, through which the metal is poured, and a cavity23 in its bottom corresponding to the rounded end of the casting. Thesefillers may be of diiferent lengths, according to the length ofsash-weights wanted, and a variety of sizes may be kept on hand, so thatby their use weights of different lengths may be cast in the same molds.

I do not limit myself to the exact form of carrying-frame, nor to theexact means of uniting the mold-sections here shown, but these arerather the preferred ways and ad mirably serve my purpose.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A mold for sash-weights, having a circumferential groove in themold-chamber near its top, and a gage-collar supported in said groove,substantially as described.

2. A gage-collar for sash weight molds, having a projection about itsoutside to enter a groove or recess in the mold-sections, and a centralopening through which the metal is poured, in combination with atwo-part mold having a groove or recess near its top to receive theprojection on the said gage-collar, substantially as described.

3. A circular revolving frame having a flat supporting-band and moldshaving hooks on their backs constructed to engage said band,substantially as described.

4:. A mold formed in longitudinal sections, one of said sections havinga recess on its meeting face below its center and the other sectionhaving a projection to engage said recess, in combination with agage-collar locked between said sections at their upper ends and a bandabout the upper portion of the mold binding said parts closely together,substantially as described.

Witness my hand to the foregoing specification this 21st day ofNovember, 1890.

JOHN CARTER. Witnesses:

H. '1. FISHER, NELLIE L. McLANE.

